Book/Report

FZJ-2016-03414

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Numerische Untersuchungen zum Brennstoffkreislauf eines 10 GW$_{th}$ OTTO-Kugelhaufenreaktors im Hinblick auf eine hohe Konversionsrate unter besonderer Berücksichtigung der Absonderung von U-236 durch Isotopentrennung

Werner, H. (Corresponding author)FZJ*

1976
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/11654

Report No.: Juel-1365

Abstract: A conversion ratio of near 1.0 can be achieved in a pebble-bed reactor using the (once through then out) loading scheine, having an economic burn-up of the fuel, an economic power density and a moderation ratio, which is considered realistically for the future. The flexibility of the reactor concept and of the fuel element design allows to recycle the fuel during full-power operation. In the present report first the criteria are shown, which are necessary to reach a high conversion ratio. Further it is presented that the conversion ratio increases considerably by closing the fuel cycle in consequence of the building-up of U-233. In this way the fuel inventory and the fuel consumption can considerably be diminished. lt is demonstrated that the building-up and the accumulation of U-236 effects an important deterioration of the neutron econamy. By taking the reprocessed uranium through an isotope separation (for example : ultragas-centrifugation) and by separation of U-236 from the other uranium isotopes it is possible to reduce the fuel consumption considerably. The expenditure and the cost which are necessary for the isotope separation are presented.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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